. Hot water supply and kitchen boiler connections : a text book on the installation of hot water service in residences and other buildings and methods of connecting range boilers, steam and gas water heaters. afiber washer, and this onbeing made up against theboiler shell secures a watertight joint. Should thecorrosion have progressedtoo far to use such a small plug it may be possible to repairthe leak by driving into the hole a tapered steel pin whichwill turn the metal inward and so form a surface which may betapped for a standard pipe size plug. Fig. 139 shows how thismay be accomplished. A
. Hot water supply and kitchen boiler connections : a text book on the installation of hot water service in residences and other buildings and methods of connecting range boilers, steam and gas water heaters. afiber washer, and this onbeing made up against theboiler shell secures a watertight joint. Should thecorrosion have progressedtoo far to use such a small plug it may be possible to repairthe leak by driving into the hole a tapered steel pin whichwill turn the metal inward and so form a surface which may betapped for a standard pipe size plug. Fig. 139 shows how thismay be accomplished. Another way of stopping a leak of thisnature is to drill out the corroded part securing a hole about %in. dia. Then a hexagonal headed machine bolt about % in. longand about 3/16 in. thick is secured and a nut fitted to it. Abrass washer about % i^- diameter which will fit snugly over thebolt is then slipped over it and a well fitting fiber washer placedbehind it. The method of fitting this plug is to take out one ofthe boiler unions in the crown and then to lower the bolt into theboiler by means of a thin string which is wound around it, andwhich hangs down below the bolt. A piece of wire bent in the. Figs. 140 and 141. Method of InsertingBolt and Washer to Repair Leak. 180 HOT WATER SUPPLY. form of a hook inserted through the hole which has been drilledto enlarge that caused by the corrosion is made to catch thestring, and so pull the bolt through the hole, as shown in Then the nut is put on and the washer drawn tightly upagainst the inside wall of the boiler. Before putting it intoplace the shell should be scraped free of rust by a bent wire filedso that it has an edge which will remove the unevenness of thecorroded surfaces. Fig. 140 shows the bolt with its washers andnuts. Hot Water Has a Milky Appearance. A not uncommon complaint is that water as drawn from thefaucets has a milky appearance, which disappears in time, leav-ing the water as clear as that drawn from
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